18980493916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{47963}}^1$

素因数の和:48154

約数の個数: 48

約数和(自身を含む): 36099624960

約数和(自身を除く): 17119131044

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 127, 164, 254, 508, 779, 1558, 2413, 3116, 4826, 5207, 9652, 10414, 20828, 47963, 95926, 98933, 191852, 197866, 395732, 911297, 1822594, 1966483, 3645188, 3932966, 6091301, 7865932, 12182602, 24365204, 37363177, 74726354, 115734719, 149452708, 231469438, 249743341, 462938876, 499486682, 998973364, 4745123479, 9490246958, 18980493916]

約数ペア:

[(1, 18980493916), (2, 9490246958), (4, 4745123479), (19, 998973364), (38, 499486682), (41, 462938876), (76, 249743341), (82, 231469438), (127, 149452708), (164, 115734719), (254, 74726354), (508, 37363177), (779, 24365204), (1558, 12182602), (2413, 7865932), (3116, 6091301), (4826, 3932966), (5207, 3645188), (9652, 1966483), (10414, 1822594), (20828, 911297), (47963, 395732), (95926, 197866), (98933, 191852)]